Bently Nevada 3500/40-01-05 Proximitor I/O Module (Internal IS Barriers, Internal Terminations) - Image 1

Bently Nevada 3500/40-01-05 Proximitor I/O Module (Internal IS Barriers, Internal Terminations) - Image 2

Bently Nevada 3500/40-01-05 Proximitor I/O Module (Internal IS Barriers, Internal Terminations)

Technical Specifications
– Channels : 4, fully isolated, independent configuration
– Input type : eddy-current or seismic (accelerometer / velocity)
– Full-scale range : 0 – 10 mm pk-pk or 0 – 50 g (software selectable)
– Frequency response : 0.5 Hz – 10 kHz (–3 dB)
– Resolution : 16-bit ADC path, <0.02 % non-linearity
– Accuracy : ±0.33 % of full scale @ 25 °C
– Internal barriers : 91 Ω series resistance, 50 V clamp per channel; meets Entity parameters for Zone 0/1 sensor circuits
– Terminations : rising-clamp screw terminals accept 0.2 – 2.5 mm² wire
– Power draw : 24 Vdc from rack back-plane, 40 mA typical per channel
– Isolation : 1 500 Vac channel-to-ground, 500 V channel-to-channel
– MTBF : >300 000 h @ 45 °C per MIL-HDBK-217F
– Operating temperature : –40 °C to +85 °C
– Storage temperature : –55 °C to +125 °C
– Humidity : 5 % – 95 % RH non-condensing
– Shock / vibration : 15 g ½-sine 11 ms; 2 g 5 – 500 Hz operational
– Dimensions : 24 cm × 2.4 cm × 16 cm (9.5″ × 0.96″ × 6.3″)
– Weight : 0.46 kg (1.0 lb)
– Agency approvals : CE, UL/cUL Class I Div 2, ATEX/IECEx Zone 2, RoHS, ABS marine

Category: Bentley

Description

Functional Highlights
– Integrated IS barriers – internal 91 Ω / 50 V network allows direct connection of Zone 0 proximity probes without external safety relays
– Flexible measurements – each channel programmable for radial vibration, thrust position, eccentricity, differential expansion or REBAM
– Dual alarms – independent Warning and Danger set-points per channel with programmable delays and latching logic
– OK status – continuous verification of sensor, cable and monitor integrity; relay driven into safe state on fault
– Hot-swap – insertion/extraction under power without interrupting rack operation or protection
– Field firmware – upgrade via System 1 or Ethernet in <3 min; rollback image stored for safety
– TMR ready – certified for Triple Modular Redundant racks where 2-out-of-3 voting is required
– Asset management – onboard diagnostics report probe gap, signal level, cable integrity and module health over the same network link

Application Scenarios
– Steam & gas turbine TSI cabinets – monitor shaft radial vibration and thrust position to prevent blade contact or bearing wipe in hazardous areas
– Offshore platform centrifugal compressors – protect against surge-induced axial movement and high radial vibration in Zone 1 without external barriers
– LNG refrigeration trains – detect mis-alignment and imbalance in multi-stage compressors while meeting ATEX requirements
– Ethylene hyper-compressors – monitor rod-drop and cross-head vibration for early rider-ring wear detection
– Cross-country pipeline pump stations – protect motor-driven pumps from cavitation and bearing failure in Class I Div 2 locations
– Steel mill blast-furnace blowers – measure gearbox housing vibration to prevent tooth breakage
– Wind-turbine test stands – track nacelle acceleration and main-bearing displacement for modal analysis
– Nuclear feed-water pumps – TMR configuration meets IEEE 338 requirements for safety-related vibration monitoring

Installation & Maintenance
The card plugs onto the rear of the 3500/40M monitor; rising-clamp terminals accept 0.2 – 2.5 mm² field wires.
Front LEDs on the monitor indicate channel health, alarm status and OK state.
Probe gap voltage and signal amplitude are continuously monitored; alarms are generated for open or shorted cables.
Replacement takes <1 min; all rack parameters remain stored non-volatilely on every monitor, so no re-configuration is necessary.

Compatibility
Backward- and forward-compatible with every 3500/40M monitor main card (125680-01, 135489-01, 135489-02, 135489-03, 135489-04).
Supported by System 1 v6.5 onward and by third-party OPC UA, Modbus and DNP3 clients.

Ordering Reference
350040-01-05 – Proximitor I/O with internal IS barriers & internal terminations, conformal coat
350040-01-06 – As above plus CSA/ATEX Class I Zone 2 certification
350040-AXX-BXX – Full modular option table for cable length, firmware revision and hazardous-area certification

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